251st Cyberspace Engineering Installation Group
An Ohio-based Air National Guard group that provides cyberspace engineering, communications installation, readiness management, and deployable command support for United States military missions.
Last updated August 26, 2026
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Overview
The 251st Cyberspace Engineering Installation Group is a United States Air National Guard engineering and communications organization headquartered at Springfield Air National Guard Base in Ohio. It is the modern successor to the 251st Combat Communications Group, a designation used from the unit’s establishment in 1952 until its transition into the cyberspace engineering installation mission beginning in 2010. The group is described as the oldest communications or cyber group in the United States Air Force and serves as a major coordinating organization for Air National Guard engineering-installation capabilities. The group’s core function is not the sale of commercial products but the delivery of specialized military communications and information-infrastructure services. Its mission includes organizing, equipping, training, and administering assigned and attached forces; maintaining readiness for emergency Air Force requirements; providing communications engineering and installation support during state emergencies; and supplying staff personnel for communications and electronics functions when Air Force taskings require deployment. In wartime or contingency conditions, headquarters personnel can augment major-command Air Force forces, joint-force commanders, numbered-air-force warfighting headquarters, or combatant-command cyber and communications staffs. The organization oversees a network of engineering-installation and combat-communications units. Assigned elements listed in reference material include the 269th Combat Communications Squadron in Ohio and engineering-installation squadrons in Utah, Oklahoma, Minnesota, Louisiana, and Texas. The group’s affiliated capability represents a substantial share of the Air Force Engineering Installation mission and supports the construction, extension, modernization, and restoration of organic cyberspace infrastructure. Its work can include communications systems installation, infrastructure engineering, technical integration, operational support, and readiness preparation for geographically distributed missions. The headquarters was constituted at Springfield, Ohio, on 5 October 1952, initially with five personnel under Major Charles R. Stahl. Its original communications mission combined functions that later became more distinct engineering-installation and combat-communications specialties. Early personnel were responsible for providing, installing, operating, and maintaining communications equipment for deployed flying units, often assembling capabilities from numerous individual components rather than using the more integrated tactical systems available to later generations. The group developed a national training and exercise program during the 1950s and began deploying to exercises in the 1970s. Its first overseas exercise involvement occurred in 1978, followed by personnel and equipment deployments connected with Korea, the European theater, United States Southern Command, and Southwest Asia. During Operations Desert Shield and Desert Storm, the organization provided more than 1,500 workdays of voluntary direct support, including both overseas assistance and stateside backfill. In its current role, the 251st manages Air National Guard engineering-installation Air Expeditionary Force and Joint Chiefs of Staff request-for-forces taskings, together with Title 10 and Title 32 workload for the Air National Guard engineering-installation community. Reference material states that roughly 100 projects are completed each year with an estimated 65 percent cost saving compared with non-organic contractor delivery; this figure describes an internal mission-efficiency claim rather than commercial revenue. The group has remained based at Springfield since its creation and has operated under different Air Force gaining-command arrangements as communications and cyber missions evolved.
History
Headquarters, 251st Communications Group was constituted at Springfield, Ohio, on 5 October 1952. Major Charles R. Stahl commanded the initial headquarters, which had five personnel. The organization began as a broad communications formation with subordinate units distributed across several states, including Ohio, North Carolina, Missouri, Illinois, Texas, Alabama, and Arkansas. Its early responsibilities combined the functions now associated with engineering-installation and combat-communications units: providing, installing, operating, and maintaining communications equipment for deployed flying units. The group expanded its administrative and training capacity during the 1950s. In 1953 it began directing group-wide exercises, with annual training held at Stewart Air Force Base, New York, in August of that year. In 1954 it received authorization for its first full-time officer air technician, Captain Herbert E. Moore, who later became Lieutenant Colonel Moore. By then, headquarters strength had increased to nine officers and nine enlisted personnel. The 251st also became the parent organization of two later Air National Guard combat-communications groups, the 226th Combat Communications Group in Alabama and the 254th Combat Communications Group in Texas. The group’s training and operational profile broadened during the Cold War and after it. It began deploying to exercises in 1976 and participated in its first overseas exercise in 1978. Subsequent exercises and missions took personnel and equipment to Korea, the European theater, the United States Southern Command area, and Southwest Asia. During Operations Desert Shield and Desert Storm, the group supplied more than 1,500 workdays of voluntary direct support in theater and through stateside backfill assignments. The organization operated under the Air Force Communications Command from 1962 to 1992, under Air Combat Command from 1992 to 2009, and under Air Force Space Command from 2009 to 2018. It returned to an Air Combat Command gaining relationship through the Air National Guard in 2018. These command relationships reflected changing approaches to military communications, information dominance, space-related support, and cyberspace infrastructure. Beginning in 2010, the former combat-communications organization began transitioning to the 251st Cyberspace Engineering Installation Group designation. The change aligned the group with a more infrastructure-focused mission while retaining its deployable communications heritage. The co-located 269th Combat Communications Squadron traces its lineage to the 1077th Signal Company of the Army Air Forces, established in March 1942, making it one of the oldest mobile communications squadrons in the Air Force lineage system. Today the headquarters commands, organizes, equips, trains, and administers assigned and attached forces. It provides communications engineering and installation services for emergency Air Force requirements and state emergencies, and it supplies communications-and-electronics personnel for deployed Air Force taskings. The group manages Air National Guard engineering-installation Air Expeditionary Force and Joint Chiefs of Staff request-for-forces requirements, as well as Title 10 and Title 32 workload for the Air National Guard engineering-installation community. Reference material identifies approximately 100 completed projects per year and reports a 65 percent cost saving compared with non-organic contractor work. The group remains stationed at Springfield Air National Guard Base, Ohio.
- 2010
Transition toward cyberspace engineering installation
[1]The former 251st Combat Communications Group began its transition to the 251st Cyberspace Engineering Installation Group mission and designation.
- 1991
Desert Shield and Desert Storm support
[1]The group provided more than 1,500 workdays of voluntary direct support during Operations Desert Shield and Desert Storm, both in the area of responsibility and through stateside backfill.
- 1978
First overseas exercise involvement
[1]The group took part in its first overseas exercise, beginning a continuing pattern of international military exercise deployments.
- 1976
Exercise deployment program expands
[1]The group began deploying personnel to exercises in preparation for its wartime mission.
- 1953
Group-wide exercise program begins
[1]The headquarters began planning and directing annual group-wide exercises, including training at Stewart Air Force Base.
- 1952
251st Communications Group constituted
[1]Headquarters was constituted at Springfield, Ohio, on 5 October 1952, with Major Charles R. Stahl as commander and an initial strength of five personnel.
- 1942
Lineage of the 269th Combat Communications Squadron begins
[1]The 1077th Signal Company of the Army Air Forces, the predecessor lineage cited for the co-located 269th Combat Communications Squadron, was established in March 1942.
Products and positioning
A long-established Air National Guard technical organization positioned as a coordinating and deployable engineering resource for military communications, cyberspace infrastructure, and contingency command support.
Military infrastructure service · 2010
Cyberspace engineering and installation
The group coordinates and delivers engineering-installation capability for Air National Guard and Air Force cyberspace infrastructure. This includes planning, building, extending, integrating, and supporting organic communications and information systems for operational and contingency requirements.
Deployable military communications · 1952
Combat communications support
Through the 269th Combat Communications Squadron and related capabilities, the group maintains a deployable communications heritage supporting mobile, expeditionary, and contingency environments where military units require communications equipment and technical personnel.
Command-support service
Communications and electronics staff augmentation
The headquarters can provide communications-and-electronics personnel to major-command, joint-force, numbered-air-force, or combatant-command staffs when personnel are deployed in support of Air Force taskings.
Brand decisions
2010
Mission transition to cyberspace engineering installationStrategyBackground
Changing Air Force requirements placed greater emphasis on cyberspace infrastructure engineering and installation in addition to traditional mobile combat communications.
Action taken
The 251st began remissioning from the 251st Combat Communications Group into the 251st Cyberspace Engineering Installation Group.
Aftermath
The organization retained combat-communications capabilities while becoming a coordinating center for Air National Guard engineering-installation forces and cyberspace infrastructure projects.
Sources1 sources
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